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Instruction Manual
760004-A
February 2002
ii Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA 2000 HFID
4-4 Burner Internal Components .................................................................................................4-8
a. Disassembly of Burner/Thermal Block............................................................................4-8
b. Replacing Burner Jets.....................................................................................................4-9
c. Burner Jet Installation .....................................................................................................4-11
4-5 Thermal Block........................................................................................................................4-12
a. Sample RTD....................................................................................................................4-12
b. Cartridge Heater..............................................................................................................4-13
c. Thermostat......................................................................................................................4-13
d. Sample Capillary.............................................................................................................4-13
4-6 Electronics Assembly ............................................................................................................4-14
a. Printed Circuit Boards .....................................................................................................4-15
b. Case Temperature Sensor..............................................................................................4-16
c. Case Pressure Purge Switch..........................................................................................4-17
d. Preamp Assembly...........................................................................................................4-18
4-7 Fan Assembly........................................................................................................................4-19
4-8 Flow Controller ......................................................................................................................4-20
4-9 DC Power Supply Module .....................................................................................................4-22
4-10 Front Panel Components.......................................................................................................4-23
a. LON/Power Module.........................................................................................................4-25
b. LED Indicator Assembly..................................................................................................4-25
c. Manual Ignite Toggle Switch...........................................................................................4-25
d. Burner Air Sensor............................................................................................................4-25
e. Fuel Sensor.....................................................................................................................4-25
f. Burner Air and Fuel Regulators ......................................................................................4-25
g. Purge Air Regulator ........................................................................................................4-26
h. Purge Air Flow Switch and Diffuser ................................................................................4-26
i. Burner Air Solenoid Valve...............................................................................................4-26
j. Air Ignite Restrictor..........................................................................................................4-26
4-11 Rear Panel Components .......................................................................................................4-27
a. Fuel In 2-Way Solenoid Valve.........................................................................................4-28
b. Burner Air In Filter...........................................................................................................4-28
c. Heated Bypass Sample Out and Heated Sample In Restrictors ....................................4-28
d. Regulated Air In Check Valve.........................................................................................4-28
5.0 TROUBLESHOOTING..........................................................................................................5-1
5-1 Troubleshooting Checklist .....................................................................................................5-1
a. Safety System.................................................................................................................5-1
b. Ignition.............................................................................................................................5-1
c. Drift..................................................................................................................................5-2
d. Noise ...............................................................................................................................5-2
6.0 REPLACEMENT PARTS......................................................................................................6-1
6-1 Matrix.....................................................................................................................................6-1
6-2 General..................................................................................................................................6-2
6-3 Pneumatics............................................................................................................................6-2
6-4 Oven Components.................................................................................................................6-3
7.0 RETURN OF MATERIAL......................................................................................................7-1
7-1 Return Of Material .................................................................................................................7-1
7-2 Customer Service ..................................................................................................................7-1
7-3 Training..................................................................................................................................7-1
8.0 APPENDIX A - MENU DISPLAYS........................................................................................8-1